SOLUTION: Find a formula for the quadratic function whose graph has vertex(2,-2) and y-intercept of -5

Question 657773: Find a formula for the quadratic function whose graph has vertex(2,-2) and y-intercept of -5
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Find a formula for the quadratic function whose graph has vertex(2,-2) and y-intercept of -5
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standard form of equation for a parabola:, (h,k)=(x,y) coordinates of the vertex
For given parabola:

solve for A using coordinates of y-intercept (0,-5)
-5=A(0-2)^2-2
-5=4A-2
4A=-3
A=-3/4
equation of given quadratic function:

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